Machine for manufacturing corrugated papers or cardboards.



C. THIBAUT.

MACHINE FOR MANUFACTURING GORRUGATED PAPERS 0R GARDBoARDs.

l Patented Apr. 18, 1911.

G@ 0 00000000000000000000'o x l QQQQQQQQ CAMILLE THIBAnT, or PARS,FRANCE.

MACHINE FOR MANUFACTURING CORUGATED PAPERS OR CABDBOARDS.

,Specification of Letters Patent.

l Application filed March 31.,V 1910, Serial No. 552,577.

Patented Apr. 18, 1911.

To all 'whom 'it may concern:

.Be'it known that I, CAMILLE THIBAUT, a citizen of the'French Republic,and a resident of Paris, France, have invented a new and ImprovedMachine for Manufacturing Corru ated Papers or Cardbbards, of which thefo lowing is a full, clear, and exact description.

This invention has for .its object an improved machine for manufacturingcorrugated papers or cardboards such as that described in thespecification of Patent No..

810,891 of 23rd January, .1906, comprising endless chains between whichthe paper or other substance to be corrugated passes.

The invention has more particularly in view. to permit of the mechanicaland continuous manufacture of papers or cardboards in-which thecorrugations are arranged in such a manner as to partly overlap in orderto increase the strength of the product and torender its strengthsubstantially'equal in every direction of the sheet. It has alreadybeen'proposed. to utilize for this purpose machines such' as describedin American Patent No. 235,698 for example in which the substance to betreated is seized between rollers provided with wedge shaped teetharranged in the direction of the displacement of the paper, but thisarrangement presents the defect that the teeth on' the drums on seizingthe paper or the cardboard tear it so that this machine can only beutilized for paper which is-still in the pulp state or for high classpapers with very long fibers and very expensive.v The invention obviatesthis defect .by arranging the wedges not as heretofore in the directionof their displacement but at right angles to lthis direction and ondividingleach wedge lato two wings and renderinvr these wings, which bytheir juxtaposition orm a wedge, independent of each other in such amanner thatthe paper can be deformed without tearing it so that paper orcardboard in the dry state can be operated on thus accelerating themanufacture. y

In the accompanying drawing which illustrates an embodiment of theinvention by way of example, Figure l is a partial section ofy the papercorrugating machine. Figs. `2 and 3 show apart of the chain in elevationand in plan.; Figs. 4; and 5 are modifications.

The chain carried by the drum a similar to those described in the FrenchPatent No.

324,067 and German `Patent No.y 144,455 is constituted by operativelinks or plates b hinged to 'a shaft c and com rising at their upperpart a series vof aralle wings d (Figs. 2 and 3) directed ob iquely tothe axis of the plates and' arranged in such a manner that each wing ofa late forms with the corresponding wing o the adjacent operative plateacomplete wedge directed perpen- 4dicularly to the direction ofdisplacement of the chain. These operative lates are separated by theinterposition of) a plate f.

During the operation of the machine the paper or cardboard e (Fig. l)isseized between the wings l and 2 belonging respectively to twocorresponding operative plates of the upper and lower chains and thesewings form the first fold or first part of the wedge. Owing to theprogress of the movement the paper is then seized by the wings 3 and 4:of the followinof plates aiso belonging to correspondingI plates of theupper and lower chains and these winvs, in the same, conditions form afresh fold or second partof the wedge which wedge is thus completelyconstituted. The paper seized between the wings of the two upper andlower chains contacts with these chains only to a small extent whichgives the paper time to become plaited without breaking, contrary towhat is the case in the known machines in which the paper engaging withwedges in a single piece, that is to say not divided into parts or wingsis suddenly subjected to great strain which causes it to tear or crack.Tearing is also facilitated owing to the fact that the points of thewedges first of all come in contact with the paper so that the sheetbeing held between the chains by the part which has already been treatedand constitutix'lg a surface which is not very pliable at the pointwhere it is to be plaited is only stamped-with difficulty and is liableto tear. If, however, the paper is seized as in the'present machine bythe wings which form a relatively short broken line a sort of plait-ingof this paper is obtained which 1s produced softly, progressively andsuccessively and without strain; this paper experiences a progressiveslamping so to speak. The chains of the machine -might of course becarried by fluted or other rollers, thc driving being effected in anyconvenient manner.- The plates and the wings may present any formappropriate for the resuit to be obtained, their number, arrangement andWidth being variable.

lnstea-d of interposed plates f the operative plates might be providedwith noses a: suitably arranged (Fig. 4) and maintaining these plates ata suitable distance apart or these plates b might be formed With athickened part (Fig.

This machine is applicable to the manufacture of corrugated papers orcardboards of all kinds but more particularly papers comprisingoverlapping or staggered corrugat-ions.

Having noW particularly described and `ascertained the nature oit' mysaid invention and in what manner the same is to be performed, I declarethat what l claim is:

1. In a machine ofthe type indicated, for corrugating paper orpaper-board, the combination With drums, of endless chains travelingthereon and comprising aA series or links or plates pivotally connectedand having their outer parts formed as Wings which are arrangedtransversely but oblique or inv clined to the direction of movement ofthe chains, the succeeding and adjacent Wings in the direction of lengthof each chain being arranged as shown, whereby such Wings approach eachother at one end and diverge at the other end, thus forming Wedges thatact on the paper or paper-board, in the manner described.

2. In a machine of the type indicated, for corrugating aper orpaper-board, the combination Wit i drums, of endless chains-travelingthereon and comprising va series of links or plates pivotally connectedand having their outer parts formed as Wings which endoso -in the mannerdescribed', and devices interposedbetween the Shanks of adjacentwings ofeach chain for holding such Wings separated or -ut of Contact With eachother, as

shown and described. y

3. ln a machine of the type indicated, for corrngating paper orpaper-board, the combination with drums, of endless chains travelingthereon and comprising a series of f links or plates pivotally connectedand having their outer parts formed as, Wings Which are arrangedtransversely but oblique or inclined to 'the direction of movement ofthe chains, the succeeding and adjacent Wings in the direction of lengthof each chain being arranged as shown, whereby such Wings approach eachother at one-end and diverge at the other end, thus forming Wedges thatact onthe pa per or paper-board, in the man-,

ner described, and plates interposed between the shanks of adjacentWings of each chain for holding' the Wings separated, as specified.

ln Witness whereof I'have hereunto set my hand, at Paris, Francethis18th day of March'1910.

CAMILLE annie-AUT.

HENRY SCHWAB.

